Beyerdynamic T90 Jubilee for $69 obo with right side not working. If someone has the skills (likely the cable) it's a steal.
I've sold a few of them working for $300, looks like it's in good condition otherwise.
BEYERDYNAMIC T90 wired headphone AS IS -Free Shipping | eBay
Condition: For repair or parts: The right headphone does not produce any sound, but the left one still works. (Case not included).
www.ebay.com